Drafting implement



Jime 21 1927.

S. P. CROUSE DRAFTING IMPLEMENT Filed Dec. 24, 1925 1-? zr gwx f [:1 f I (/i atqg.

Patented June 21, 1927.

' sTEDMeN; caovsa (was omIWm-LE.M S A HW e nnar'rine IMHLE'MENTZ Application filed member 24, 1925. Serial m. f7,425.

This invention relates to a drafting implement, and more particularly to a device having provision therein for rapidly and neatly laying out diagrams for court or other work at short notice.

It is an object of the invention to provide a drafting implement which may be readily carried in the pocket and'which is a service able device for the use of those Wishing to make rapid and intelligible diagrammatic sketches of localities, such as intersecting streets, the location of car tracks and cross overs, the location of buildings relatively to street corners, as well as the location of vehicles, man holes, posts or other obstructions which it is desired to record for immediate or future use. V

, Other objects of the invention will be fully understood from adescription of the drawings and the claims hereinafter given.

Of the drawings: I

Figure 1 represents a top plan view of the implement.

Figure 2 is a side elevation of Figure 1.

Figure 3 is one of many diagrams which might be made with the implement.

Referring to the drawings:

The drawings herewith illustrate the invention as conveniently arranged for the use of accident claim agents, lawyers, realtors, and for others whose duty or desire is to make diagrammatic sketches of localities or situations for future reference, but itrwill be understood that it is, not the intention to J- limit the invention to the precise arrange ment shown as changes might be made therescope. 7

In the present instance a preferably transparent plate 10 is provided with a plurality of perforations assuming various shapes, lengths, and sizes, and so arranged that a marking tool, such as a pencil, may be inserted in a given perforation or slit and the outline or form of the particular perforation or slit or certain portions thereof necessary for the use, may be transferred to paper in the make up of the diagram desired.

Figure 3 of the drawingsshows a-simple diagram depicting the location and condi tions existing at the time of a collisionbetween two motor propelled vehicles which supposedly happened at the intersection of two streets A and B, the outlinesiof which were obtained by laying the plate 10 on the paper and. drawing 'apencil along the edges 11o-f the perforations 12. Vithout moving the plate 10 the pencil will be inserted in the perforation 13 and drawn along both edges 14 thereof to indicate the car tracks 15, and thereafter in a like perforation 16 to indicate the tracks 17 and for the cross over 18 the plate will be moved to the requiredposition to place the perforation 19 so that lines may be drawn to connect the two tracksby the compound curves obtained by the pencil being guided by the edges 20 ofthe said perforation 19.

In the. event that a rounded or curved street corner vwas to be drawn, the edges of either of the perforations 21 or 22 would be used for the purpose.

The perforations 23 and 24 may be used to represent various objects, and in this instance 24 serves the purpose of aiding in illustrating a large size electric car 25 on the track 17, above which two motor vehicles 26 and 27, supposedly in collision, and drawn by the aid of the perforations 28 and 29, are

seen.

The perforations 30, 31 and 32 might be used to indicate structures or street reservations, while 33 might be used in indicating cross walk or trench, 34 and [35 might be used to represent posts, manholes or the like.

The particular implement shown herewith V lylaying out a very common arrangement of streets and car lines where it has been found that many if not the majority of motor vehicle accidents occur. 7

It will be understood, however, that perforations outlining other common and well known objects such as persons, animals, and public conveyances might be included to satisfy the needs for the particular use without departing from the spirit and scope of the invention. 7

Having described the invention I claim:

1. A stencil for use in producing diagrammatic drawings of street intersections and the like made from a piece of stiff thin sheet material, said piece ofmaterial being formed with a pair of parallel track slots; two pairs of right-angled sidewalk slots, one at eachside of said track slots, one leg of each sidewalk slot being perpendicular to a d ra k slots and the o h eg 0 a h and sidewalk slot being parallel with said track slots, the perpendicular legs of said sidewalk slots being adjacent the middle portion of said track slots.

2. A stencil for use in producing diagrammatic drawings of street intersections and the like made from a piece of stifi thin sheet material, said piece of material being formed with a pair of parallel track slots; two pairs of right-angled sidewalk slots, one at each side of said track slots, one leg of each sidewalk slot being perpendicular to said track slots and the other leg of each sidewalk slot being parallel with said track slots, the perpendicular legs of said sidewalk 15 bile or the like, and a hole for outlining a 20 building.

Signed by me at Boston, Massachusetts, this 19th day of December 1925.

STEDMAN P. CROUSE. 

